* Wiesław Kielas <wieslaw.kie...@bluemedia.pl> [04.09.2013. @15:44:05 +0200]: > Hi misc@, > > I have a Dell PowerEdge M600 machine running OpenBSD 5.3 which causes > frequent problems - once about every few days vlan interfaces stop > working. > > Ifconfig reports them being up the whole time, but when trying to ping > anything in the given vlan, the ping fails (this also applies to the > loopback address on the interface - it doesn't reply as well), as if no > packets were transmitted on it. This applies to all packets on the > interface, not just ICMP ones. > > This doesn't seem to be a PF issue, since disabling it doesn't help, and > non-vlan interfaces (like trunk0 with trunkproto failover) continue to > work. > > Putting the interface down and up, destroying and creating it or running > /etc/netstart doesn't help - a reboot is required, after which the > machine works correctly again for some time. > > I checked the logs and dmesg and found there nothing of any value - no > new messages around the time of the crash. > > As this is a blade machine, most hardware issues (like memory problems) > would be reported by the chassis, and it reports none. > > I have a couple other M600 machines running OpenBSD, with the same > network cards, and only once this problem did occur on another machine - > a slave for the problematic one, running pfsync, sasync and acting as a > carp backup. > > Could anyone provide me with some tips on how to debug the problem > further? Turn on some kernel debug mode, make use of the kernel > debugger? I'm at my wits end here. > > If there is any information that I could provide to help solve the > problem, please don't hesitate to ask. > > The dmesg is attached below: > > <snip>
I'm currently testing a diff which disables hw vlan tag processing, which I recieved off-list. Aside from that, after increasing isakmpd verbosity, I started getting messages like this before every vlan freeze: > isakmpd[6940]: dropped message from 193.xxx.xxx.xxx port 500 due to > notification type INVALID_FLAGS Could they be somehow related? -- regards, Wiesław Kielas
